Car heater



June 12, 1934. H. A. scHwAGER CAR HEATER Filed Marh 8. 1928 Patented June 12, 1934l UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to means for utilizing the heat from the exhaust gases of the propelling engine of an automotive Vehicle to heat the interior of the body of the vehicle. More specifically, the invention relates to that type of heating equipment in which the heat from the exhaust gases is used to heat a supply of air which is to be introduced into the interior of the body of the vehicle for Ventilating purposes.

lt is an object of the invention to provide certain new and useful improvements in registers for distributing and controlling the supply of heated air introduced into the body of the Vehicle.

Particles of foreign matter frequently fall into registers and, being heated by the hot air passing therethrough, give rise to foul smelling vapors or gases which issue from the register with the air and cause great annoyance to the occupants of the compartment into which the air enters. It is an object of this invention to associate with a register a cartridge or receptacle containing a deodorizing or perfumatory material which will counteract and overcome the odors of the gases or vapors mentioned above. It is another object of the invention to provide the register with a removable portion so that access may be had to the interior thereof for the purpose of removing particles of foreign matter which may have fallen therein.

Other objects of the invention will be apparent from a perusal of the following specification in which is described the embodiment of my invention which is shown in the accompanying drawing.

In the accompanying drawing2 Figure 1 is a vertical cross section, taken on the line 9-9 of Figure 2, showing a register in accordance with my invention installed in the iioor of an automotive vehicle.

Figure 2 is a top plan View of the register shown in Figure 1.

Figure 3 is a section through the register shown in Figures 1 and 2, taken on the line 11-11 of Figure l.

Figure 4 is a fragmentary section through the register shown in Figures 1, 2 and 3, taken on the line 12-12 of Figure 1.

The register shown in the drawing includes a cup-shaped housing 85 provided on its upper edge with an outwardly extending circumferential fiange 86. A cylindrical conduit 87, which is preferably formed integral with the housing, extends from the outside thereof to the inside through the bottom of the housing. The portion T. of the conduit within the housing is provided with a series of equally spaced vertical slots 88, preferably three in number, extending from the upper end thereof to points adjacent the bottom of the housing. From the upper end of each of the portions of the wall of the conduit between the slots 88, a spoke 89 of a spider extends radially inwardly. At the center of the conduit, the spokes 89 merge into a hub 90 which is provided with a threaded bore 91. Integral with the housing 85, on the inside thereof, and extending from the upper edge thereof to a point substantially midway between the upper edge and the bottom of the housing is an annulus 92. A series of vertically extending, circumferentially spaced grooves 93 of which each extends from the bottom of the annulus to a point adjacent but spaced from the top thereof, s provided on the inner face of the annulus.

The reference character 94 indicates a bowl which is seated on the upper end of the conduit 87 with its side walls in circumferential contact with inner wall of the annulus 92 and extending to the upper edge of housing 85. 'I'he bowl is journalled on the stud 95 which is threaded in the opening 91 in the hub 90, extends upwardly through a central opening 96 in the bottom of the bowl, and through a collar 97 integral with the bowl. Y Y

In the side walls of the bowl 94 and extending from the upper edge thereof to points adjacent but spaced from the lower edge of the annulus 92 are provided a plurality of circumferentially spaced notches 98. These notches are, in number, equal to the number of slots 93 in the annulus 92, and are adapted to be brought into registration with the slots 93 to open-communication between the lower compartment 99 and the upper compartment 199 of the register or to be brought into registration with the portions of the annulus between the slots 93 to close the compartment 100 to the compartment 99 by simply rotating the bowl about the stud 95. A strip 114 of wire gauze or like material is secured on the inside of the bowl 94 and covers the notches 98.

Seated on the upper edge of the collar 97 and having in its bottom an opening 101 surrounded by an upwardly projecting flange or collar 102 through which extends the stud is a bowl 103 which contains a deodorizing or perfumatory material. The bowl 103 is covered by a wire gauze or screen 104 to prevent or hinder the entrance of foreign matter thereinto.

The upper end of the housing 85 is closed by a circular cover plate 105 whose circumferential edges 106 are adapted to be seated on the flange 86. Extending downwardly from the inner surface of the cover are a plurality of projections 107 arranged in a circle equal in diameter to the bowl 94 and equal in number to the number of notches 98. When the cover is in place on the housing, each of these projections extends down into one of the notches 98. Between its outer edge and its center, the cover is provided with a plurality of segmental openings 108 arranged symmetrically about the central portion 109 of the cover. Secured to the central portion 109 of the cover and projecting downwardly therefrom is a spring clip 110 adapted to snap over the ball shaped upper end 111 of the stud 95 to secure the cover in place on the housing.

The housing, as indicated in the drawing, is adapted to be seated in an opening in a o or board 112 of an automotive vehicle with the iiange 86 resting on the upper surface thereof and secured thereto by the bolts 113.

In operation, a pipe leading from a source of heated air, such as a jacket or other heating element associated with the exhaust system of an automotive vehicle, is connected to the conduit 87. I-Iot air enters the conduit 87 from the pipe and passes through the slots 88 into the compartment 99 and then into the slots 93. When the notches 98 are in registration with the slots 93, the hot air passes through the notches 98 and the screen 114 which strains out foreign matter from the air which then enters the upper compartment 100, whence, it passes through the openings 108 into the interior of the body of the vehicle.

Since the cover 105 is keyed to the bowl through the projections 107, the bowl may be rotated from a position in which the notches 98 register with the slots 93, when heated air may pass from the compartment 99 to the compartment 100 and, thence, into the body of the car, to a position in which the notches 98 register with the portions of the annulus between the slots when communication between the two compartments is cut off and admission of heated air from the heating element to the body of the car is prevented, by simply rotating the cover 105.

rEhe spring clip 110 maintains the cover 105 against accidental displacement from the housing. Access to the interior of the housing may be obtained by removing the cover which is easily accomplished by lifting it vertically.

When the bowl 103 becomes heated by the air passing through the register, the deodorizing or perfumatory material which it contains gives off a gas or vapor which mixes with the air and counteracts or overcomes the unpleasant odors of the vapors or gases emitted from any particles of foreign matter which may fall into the register or heating element and vaporize or burn to give unpleasant smelling gases or vapors and insures that the air entering the body of the vehicle through the register will have a pleasant and agreeable odor. The deodorizing or perfumatory material may be a substance which gives oi a vapor having either deodorizing or perfumatory qualities and it is obvious that a material which will absorb and/or adsorb the gases or vapors having an objectionable odor can be used in place of or in combination with either or both of the substances mentioned above.

Y As it is intended to make the registers of comparatively small size it may be necessary or desirable to use more than one in each car. In this event it is considered preferable to connect the registers in multiple.

Though I have described my invention with great particularity and have shown and described it as applied to an automotive vehicle, it is to be understood that this has been done merely by way of example, and not by way of limitation, and that the scope of my invention is limited only by the appended claims.

I claim:

1. In a register, a housing, a bowl within the housing and adjustable to a plurality of positions to regulate the flow of Ihuid through the register.

2. In a register, a housing, a bowl within the housing and adjustable to a plurality or positions whereby the flow of uid through the register may be controlled, a cover for the housing, said cover and bowl being so related that adjustment of the bowl may be eiected by movement of the cover.

3. In a register, a housing, flow controlling mechanism within the housing, and a cover in which there is provided a constantly open passage so connected to the flow controlling mechanism that movement of the cover adjusts the flow controlling mechanism.

4. In a register, a housing, a bowl so located within the housing that it divides the housing into two compartments, the juxtaposed portions of the bowl and housing being so arranged that communication between the upper and lower compartments may be controlled by adjusting the bowl.

5. The invention claimed in claim 4 plus a cover for the housing which is so connected to the bowl that movement of the cover serves to eiect an adjustment of the bowl.

HENRY A. SCHWAGER. 

